Fixed unmount_std.go.

unmount_std.go

@@ -1,17 +1,18 @@
 // +build !linux
 
-package fuseshim
+package fuse
 
 import (
 	"os"
 	"syscall"
 )
 
-func unmount(dir string) error {
-	err := syscall.Unmount(dir, 0)
+func unmount(dir string) (err error) {
+	err = syscall.Unmount(dir, 0)
 	if err != nil {
 		err = &os.PathError{Op: "unmount", Path: dir, Err: err}
-		return err
+		return
 	}
-	return nil
+
+	return
 }